linux-stable/drivers/mfd/lp8788.c
Linus Torvalds ae9559594c - Core Frameworks
- Fix 'mfd_of_node_list' OF node entry resource leak
 
  - New Drivers
    - Add support for Ocelot VSC7512 Networking Chip
    - Add support for MediaTek MT6370 subPMIC
    - Add support for Richtek RT5120 (I2C) PMIC
 
  - New Device Support
    - Add support for Rockchip RV1126 and RK3588 to Syscon
    - Add support for Rockchip RK817 Battery Charger to RK808
    - Add support for Silergy SY7636a Voltage Regulator to Simple MFD
    - Add support for Qualcomm PMP8074 PMIC to QCOM SPMI
    - Add support for Secure Update to Intel M10 BMC
 
  - New Functionality
    - Provide SSP type to Intel's LPSS (PCI) SPI driver
 
  - Fix-ups
    - Remove legacy / unused code; stmpe, intel_soc_pmic_crc, syscon
    - Unify / simplify; intel_soc_pmic_crc
    - Trivial reordering / spelling, etc; Makefile, twl-core
    - Convert to managed resources; intel_soc_pmic_crc
    - Use appropriate APIs; intel_soc_pmic_crc
    - strscpy() conversion; htc-i2cpld, lpc_ich, mfd-core
    - GPIOD conversion; htc-i2cpld, stmpe
    - Add missing header file includes; twl4030-irq
    - DT goodies; stmpe, mediatek,mt6370, x-powers,axp152,
                  aspeed,ast2x00-scu, mediatek,mt8195-scpsys,
 		 qcom,spmi-pmic, syscon, qcom,tcsr, rockchip,rk817,
 		 sprd,ums512-glbreg, dlg,da9063
 
  - Bug Fixes
    - Properly check return values; sm501, htc-i2cpld
    - Repair Two-Wire Bus Mode; da9062-core
    - Fix error handling; intel_soc_pmic_core, fsl-imx25-tsadc,
                          lp8788, lp8788-irq
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Merge tag 'mfd-next-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "Core Frameworks:
   - Fix 'mfd_of_node_list' OF node entry resource leak

  New Drivers:
   - Add support for Ocelot VSC7512 Networking Chip
   - Add support for MediaTek MT6370 subPMIC
   - Add support for Richtek RT5120 (I2C) PMIC

  New Device Support:
   - Add support for Rockchip RV1126 and RK3588 to Syscon
   - Add support for Rockchip RK817 Battery Charger to RK808
   - Add support for Silergy SY7636a Voltage Regulator to Simple MFD
   - Add support for Qualcomm PMP8074 PMIC to QCOM SPMI
   - Add support for Secure Update to Intel M10 BMC

  New Functionality:
   - Provide SSP type to Intel's LPSS (PCI) SPI driver

  Fix-ups:
   - Remove legacy / unused code; stmpe, intel_soc_pmic_crc, syscon
   - Unify / simplify; intel_soc_pmic_crc
   - Trivial reordering / spelling, etc; Makefile, twl-core
   - Convert to managed resources; intel_soc_pmic_crc
   - Use appropriate APIs; intel_soc_pmic_crc
   - strscpy() conversion; htc-i2cpld, lpc_ich, mfd-core
   - GPIOD conversion; htc-i2cpld, stmpe
   - Add missing header file includes; twl4030-irq
   - DT goodies; stmpe, mediatek,mt6370, x-powers,axp152,
     aspeed,ast2x00-scu, mediatek,mt8195-scpsys, qcom,spmi-pmic, syscon,
     qcom,tcsr, rockchip,rk817, sprd,ums512-glbreg, dlg,da9063

  Bug Fixes:
   - Properly check return values; sm501, htc-i2cpld
   - Repair Two-Wire Bus Mode; da9062-core
   - Fix error handling; intel_soc_pmic_core, fsl-imx25-tsadc, lp8788,
     lp8788-irq"

* tag 'mfd-next-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (60 commits)
  mfd: syscon: Remove repetition of the regmap_get_val_endian()
  mfd: ocelot-spi: Add missing MODULE_DEVICE_TABLE
  power: supply: Add charger driver for Rockchip RK817
  dt-bindings: mfd: mt6370: Fix the indentation in the example
  mfd: da9061: Fix Failed to set Two-Wire Bus Mode.
  mfd: htc-i2cpld: Fix an IS_ERR() vs NULL bug in htcpld_core_probe()
  dt-bindings: mfd: qcom,tcsr: Drop simple-mfd from IPQ6018
  mfd: sm501: Add check for platform_driver_register()
  dt-bindings: mfd: mediatek: Add scpsys compatible for mt8186
  mfd: twl4030: Add missed linux/device.h header
  dt-bindings: mfd: dlg,da9063: Add missing regulator patterns
  dt-bindings: mfd: sprd: Add bindings for ums512 global registers
  mfd: intel_soc_pmic_chtdc_ti: Switch from __maybe_unused to pm_sleep_ptr() etc
  dt-bindings: mfd: syscon: Add rk3588 QoS register compatible
  mfd: stmpe: Switch to using gpiod API
  mfd: qcom-spmi-pmic: Add pm7250b compatible
  dt-bindings: mfd: Add missing (unevaluated|additional)Properties on child nodes
  mfd/omap1: htc-i2cpld: Convert to a pure GPIO driver
  mfd: intel-m10-bmc: Add d5005 bmc secure update driver
  dt-bindings: mfd: syscon: Drop ref from reg-io-width
  ...
2022-10-07 11:24:20 -07:00

247 lines
5.2 KiB
C

// SPDX-License-Identifier: GPL-2.0-only
/*
* TI LP8788 MFD - core interface
*
* Copyright 2012 Texas Instruments
*
* Author: Milo(Woogyom) Kim <milo.kim@ti.com>
*/
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/mfd/core.h>
#include <linux/mfd/lp8788.h>
#include <linux/module.h>
#include <linux/slab.h>
#define MAX_LP8788_REGISTERS 0xA2
#define MFD_DEV_SIMPLE(_name) \
{ \
.name = LP8788_DEV_##_name, \
}
#define MFD_DEV_WITH_ID(_name, _id) \
{ \
.name = LP8788_DEV_##_name, \
.id = _id, \
}
#define MFD_DEV_WITH_RESOURCE(_name, _resource, num_resource) \
{ \
.name = LP8788_DEV_##_name, \
.resources = _resource, \
.num_resources = num_resource, \
}
static const struct resource chg_irqs[] = {
/* Charger Interrupts */
{
.start = LP8788_INT_CHG_INPUT_STATE,
.end = LP8788_INT_PRECHG_TIMEOUT,
.name = LP8788_CHG_IRQ,
.flags = IORESOURCE_IRQ,
},
/* Power Routing Switch Interrupts */
{
.start = LP8788_INT_ENTER_SYS_SUPPORT,
.end = LP8788_INT_EXIT_SYS_SUPPORT,
.name = LP8788_PRSW_IRQ,
.flags = IORESOURCE_IRQ,
},
/* Battery Interrupts */
{
.start = LP8788_INT_BATT_LOW,
.end = LP8788_INT_NO_BATT,
.name = LP8788_BATT_IRQ,
.flags = IORESOURCE_IRQ,
},
};
static const struct resource rtc_irqs[] = {
{
.start = LP8788_INT_RTC_ALARM1,
.end = LP8788_INT_RTC_ALARM2,
.name = LP8788_ALM_IRQ,
.flags = IORESOURCE_IRQ,
},
};
static const struct mfd_cell lp8788_devs[] = {
/* 4 bucks */
MFD_DEV_WITH_ID(BUCK, 1),
MFD_DEV_WITH_ID(BUCK, 2),
MFD_DEV_WITH_ID(BUCK, 3),
MFD_DEV_WITH_ID(BUCK, 4),
/* 12 digital ldos */
MFD_DEV_WITH_ID(DLDO, 1),
MFD_DEV_WITH_ID(DLDO, 2),
MFD_DEV_WITH_ID(DLDO, 3),
MFD_DEV_WITH_ID(DLDO, 4),
MFD_DEV_WITH_ID(DLDO, 5),
MFD_DEV_WITH_ID(DLDO, 6),
MFD_DEV_WITH_ID(DLDO, 7),
MFD_DEV_WITH_ID(DLDO, 8),
MFD_DEV_WITH_ID(DLDO, 9),
MFD_DEV_WITH_ID(DLDO, 10),
MFD_DEV_WITH_ID(DLDO, 11),
MFD_DEV_WITH_ID(DLDO, 12),
/* 10 analog ldos */
MFD_DEV_WITH_ID(ALDO, 1),
MFD_DEV_WITH_ID(ALDO, 2),
MFD_DEV_WITH_ID(ALDO, 3),
MFD_DEV_WITH_ID(ALDO, 4),
MFD_DEV_WITH_ID(ALDO, 5),
MFD_DEV_WITH_ID(ALDO, 6),
MFD_DEV_WITH_ID(ALDO, 7),
MFD_DEV_WITH_ID(ALDO, 8),
MFD_DEV_WITH_ID(ALDO, 9),
MFD_DEV_WITH_ID(ALDO, 10),
/* ADC */
MFD_DEV_SIMPLE(ADC),
/* battery charger */
MFD_DEV_WITH_RESOURCE(CHARGER, chg_irqs, ARRAY_SIZE(chg_irqs)),
/* rtc */
MFD_DEV_WITH_RESOURCE(RTC, rtc_irqs, ARRAY_SIZE(rtc_irqs)),
/* backlight */
MFD_DEV_SIMPLE(BACKLIGHT),
/* current sink for vibrator */
MFD_DEV_SIMPLE(VIBRATOR),
/* current sink for keypad LED */
MFD_DEV_SIMPLE(KEYLED),
};
int lp8788_read_byte(struct lp8788 *lp, u8 reg, u8 *data)
{
int ret;
unsigned int val;
ret = regmap_read(lp->regmap, reg, &val);
if (ret < 0) {
dev_err(lp->dev, "failed to read 0x%.2x\n", reg);
return ret;
}
*data = (u8)val;
return 0;
}
EXPORT_SYMBOL_GPL(lp8788_read_byte);
int lp8788_read_multi_bytes(struct lp8788 *lp, u8 reg, u8 *data, size_t count)
{
return regmap_bulk_read(lp->regmap, reg, data, count);
}
EXPORT_SYMBOL_GPL(lp8788_read_multi_bytes);
int lp8788_write_byte(struct lp8788 *lp, u8 reg, u8 data)
{
return regmap_write(lp->regmap, reg, data);
}
EXPORT_SYMBOL_GPL(lp8788_write_byte);
int lp8788_update_bits(struct lp8788 *lp, u8 reg, u8 mask, u8 data)
{
return regmap_update_bits(lp->regmap, reg, mask, data);
}
EXPORT_SYMBOL_GPL(lp8788_update_bits);
static int lp8788_platform_init(struct lp8788 *lp)
{
struct lp8788_platform_data *pdata = lp->pdata;
return (pdata && pdata->init_func) ? pdata->init_func(lp) : 0;
}
static const struct regmap_config lp8788_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = MAX_LP8788_REGISTERS,
};
static int lp8788_probe(struct i2c_client *cl, const struct i2c_device_id *id)
{
struct lp8788 *lp;
struct lp8788_platform_data *pdata = dev_get_platdata(&cl->dev);
int ret;
lp = devm_kzalloc(&cl->dev, sizeof(struct lp8788), GFP_KERNEL);
if (!lp)
return -ENOMEM;
lp->regmap = devm_regmap_init_i2c(cl, &lp8788_regmap_config);
if (IS_ERR(lp->regmap)) {
ret = PTR_ERR(lp->regmap);
dev_err(&cl->dev, "regmap init i2c err: %d\n", ret);
return ret;
}
lp->pdata = pdata;
lp->dev = &cl->dev;
i2c_set_clientdata(cl, lp);
ret = lp8788_platform_init(lp);
if (ret)
return ret;
ret = lp8788_irq_init(lp, cl->irq);
if (ret)
return ret;
ret = mfd_add_devices(lp->dev, -1, lp8788_devs,
ARRAY_SIZE(lp8788_devs), NULL, 0, NULL);
if (ret)
goto err_exit_irq;
return 0;
err_exit_irq:
lp8788_irq_exit(lp);
return ret;
}
static void lp8788_remove(struct i2c_client *cl)
{
struct lp8788 *lp = i2c_get_clientdata(cl);
mfd_remove_devices(lp->dev);
lp8788_irq_exit(lp);
}
static const struct i2c_device_id lp8788_ids[] = {
{"lp8788", 0},
{ }
};
MODULE_DEVICE_TABLE(i2c, lp8788_ids);
static struct i2c_driver lp8788_driver = {
.driver = {
.name = "lp8788",
},
.probe = lp8788_probe,
.remove = lp8788_remove,
.id_table = lp8788_ids,
};
static int __init lp8788_init(void)
{
return i2c_add_driver(&lp8788_driver);
}
subsys_initcall(lp8788_init);
static void __exit lp8788_exit(void)
{
i2c_del_driver(&lp8788_driver);
}
module_exit(lp8788_exit);
MODULE_DESCRIPTION("TI LP8788 MFD Driver");
MODULE_AUTHOR("Milo Kim");
MODULE_LICENSE("GPL");